东湖通道工程控制点联测技术报告新版514.docx

1、东湖通道工程控制点联测技术报告新版514 东湖通道工程控制网联测技术报告编制单位：武汉市东湖通道工程第三项目部编制人： 审核人： 审批人： 编制时间： 二一三年四月二十五日 一 概述1.1.1工程区位东湖通道工程起于二环线水东段主线高架桥（红庙立交）起点桩号为DBK0+000，止于鲁磨路与东湖东路交叉口处桩号为DHTDK5+260，横贯东湖风景名胜区，线路由红庙立交接线桥梁段、东湖隧道段、东湖东路亲水平台组成，全长6560m。如下图所示：图1工程区位图二 执行规范1、公路勘测规范（JTGC102007）；2、全球定位系统(GPS)测量规范（GB/T183142009）；3、工程测量规范（GB5

2、0026-2007）；4、国家一、二等水准测量规范（GB12897-2006）；三 完成工作量1、完成东湖通道二等控制点复测6个；2、完成二等水准测量25km；四 既有资料收集由武汉市政工程设计研究院有限公司勘测设计院施测的成果资料见附近1、工程测量交接桩记录表经现场踏勘，现有控制点标石保存完好。控制点情况如下图2：图2五 人员时间及仪器投入5.1 参与人员时间为确保联测工作的顺利实施，项目共投入工程师3人，助理工程师5人，技术员及相关人员若干于2013年4月19日至20日2天完成联测，测量时温度为21摄氏度微风。5.2 仪器及软件1、平面控制测量投入苏一光公司生产的SGS828型双频GPS接

3、收机4台套。其静态平面标称精度为：2.5mm+1ppm ,高程标称精度为：5mm+2ppm。2、高程控制测量投入Leica DNA03数字水准仪1台，标称精度高程中误差0.3mm/km。 3、数据处理及平差计算投入笔记本电脑3台。4、GPS数据处理采用苏一光公司FOIF Geomatice Offfice数据后处理及平差软件。5、水准网的平差采用清华山维NASEW智能图文网平差软件。所有的仪器设备均经测绘仪器计量单位检定合格，并在有效期内，鉴定证书见附件。六 首级控制网联测6.1 控制网测量要求6.1.1 平面控制平面控制网检测的精度指标与基本技术要求按规范执行。具体的技术参数见以下两表：表6

4、.1 各级GPS测量作业的基本技术要求 级别项目二等三等静态测量卫星高度角()1515时段长度（min）30902060同时观测有效卫星数（个）44数据采样间隔(S)10301030PDOP66表6.2 GPS测量的精度指标控制网级别最弱边相对中误差二等1/120000三等1/70000GPS观测的具体要求1、作业前对光学对点器进行了检验校正,统一设定了接收机参数；2、作业时天线严格置平对中，对中精度小于1mm；3、天线定向标志线指向正北；4、天线高每个时段观测前（开机前）、观测后（关机后）各量天线高一次。每次在相同的位置，从天线三个不同方向（间隔120）量取。两次量取误差不大于2mm时，取平

5、均值记入观测手簿；5、测量手簿均在现场按作业顺序完成记录； 6、每天及时将当天观测结果录入计算机，并拷贝成一式两份；7、数据文件均以观测日期为目录名进行存储和备份。6.1.2 高程控制高程控制网检测按规范执行，具体要求见下表：表6.3 水准测量的主要技术标准等级每千米高差全中误差（mm）路线长度（km）水准仪等级水准尺观 测 次 数往返较差或闭合差（mm）与已知点联测附合或环线二等2-DS1铟钢尺往返往返4表6.4 二等水准技术要求（水准尺为单面尺）项 目技术要求视 线 长 度 50m前 后 视 距 差1m前后视距累积差3m视线离地面最低高度0.5m基辅面（黑红）读数差0.5m基辅面（黑红）高

6、差较差0.7m以上表中L为往返测段、附合或环线的水准路线长度，单位km。6.2 平面控制网复测6.2.1 GPS观测本项目根据测区地形和交通状况、采用的GPS作业方法、设计的基线、最短观测时间等因素综合考虑，编制了观测计划表，同时依据具体情况，进行实时调整。本项目按照规范中二等GPS网的主要技术要求进行测量。GPS控制网为网连方式构网。GPS控制网观测时如下图3：图46.2.2 基线解算及无约束平差每天及时下载观测原始数据，按要求剔除观测时间和观测质量不满足要求的卫星时段，然后用苏一光FGO数据后处理及平差软件进行了基线解算和检验。对不满足要求的基线进行了剔除和及时补测。解算结果如下表：表6.

7、7 基线解算成果序号基线名DX(m)DY(m)DZ(m)距离中误差 (m)改正数 (m)改正数 (m)改正数 (m)改正数 (m)相对误差1DH02DH04.1141-1485.8622473.9003-1769.51872358.7210.0309-0.00850.03370.0188-0.0021: 763912DH02DH05.1141-2161.5749935.3936-2955.39053779.11370.02450.0147-0.0304-0.0194-0.00081: 1541213DH02T029.1132-645.1184449.766-1145.57561389.5362

8、0.0325-0.03440.10080.0591-0.00021: 427734DH02TD11.1141-2188.395325.2067-2031.91223003.9140.0291-0.03240.04680.02810.00971: 1030635DH04DH05.1135-675.7127461.4932-1185.87181440.78290.0242-0.01090.03980.02040.00111: 594476DH04DH05.1141-675.7127461.4932-1185.87181440.78290.02420.0255-0.065-0.0387-0.0011

9、: 594477DH04T029.1133840.7438-24.1343623.94311047.25240.02840.0176-0.01-0.0030.01261: 369288DH04T029.1135840.7438-24.1343623.94311047.25240.02840.0178-0.0282-0.02080.00261: 369289DH04TD11.1132-702.5328-148.6937-262.3935764.53420.0224-0.00040.00770.0011-0.00151: 3405610DH04TD11.1133-702.5328-148.6937

10、-262.3935764.53420.02240.0096-0.00030.0023-0.00961: 3405611DH04TD11.1141-702.5328-148.6937-262.3935764.53420.0224-0.0170.03620.0140.00381: 3405612DH05DH06.1135-1469.4993156.4446-1261.4511942.97760.01730.0166-0.0458-0.02970.0031: 11242713DH05DH06.1136-1469.4993156.4446-1261.4511942.97760.01730.0167-0

11、.0451-0.0231-0.00131: 11242714DH05DH07.1136-2310.168548.8073-1688.24052861.71570.02040.0145-0.035-0.02570.00291: 14011115DH05DH07.1137-2310.168548.8073-1688.24052861.71570.0204-0.0039-0.0085-0.00750.00741: 14011116DH05DH07.1137-2310.168548.8073-1688.24052861.71570.02040.0244-0.0563-0.0286-0.00381: 1

12、4011117DH05DH08.1135-2779.8658690.1922-2995.77674144.71920.0150.0689-0.1477-0.0739-0.01741: 27686418DH05DH08.1143-2779.8658690.1922-2995.77674144.71920.015-0.00930.03280.0275-0.00821: 27686419DH05DH09.1142-2687.86871226.3566-3768.39384788.46320.0183-0.00380.02590.0209-0.00771: 26108320DH05DH10.1142-

13、2726.29451458.2382-4151.73475176.48920.0187-0.00110.01540.0115-0.00431: 27608021DH05T029.11351516.4565-485.62751809.81492410.58170.02860.0206-0.0441-0.02490.00321: 8433322DH05TD11.1133-26.8202-610.1869923.47831107.18540.02060.0145-0.0394-0.02250.00261: 5369523DH05TD11.1134-26.8202-610.1869923.478311

14、07.18540.02060.0259-0.0643-0.0340.00641: 5369524DH05TD11.1141-26.8202-610.1869923.47831107.18540.0206-0.04180.06010.0343-0.00351: 5369525DH06DH07.1136-840.6692-107.6373-426.7894948.92560.01750.0071-0.0098-0.01260.00051: 5425726DH06DH07.1137-840.6692-107.6373-426.7894948.92560.0175-0.00410.00550.0060

15、.00031: 5425727DH06DH07.1137-840.6692-107.6373-426.7894948.92560.01750.0054-0.0121-0.0054-0.0011: 5425728DH06DH08.1135-1310.3665533.7475-1734.32572238.26550.0210.0373-0.0909-0.06880.00981: 10671629DH06TD11.11341442.6791-766.63152184.92932728.17950.02390.0082-0.0142-0.00140.00721: 11416930DH07DH08.11

16、35-469.6973641.3849-1307.53621530.24220.02330.0368-0.0789-0.0519-0.00011: 6577831DH07TD11.11342283.3483-658.99422611.71883531.15110.02580.0023-0.00390.01160.01081: 13672532DH07TD11.11342283.3483-658.99422611.71883531.15110.0258-0.00090.0177-0.0025-0.00571: 13672533DH08DH09.114291.9971536.1644-772.61

17、71944.91950.01560.0003-0.0084-0.00780.00161: 6070034DH08DH10.114253.5713768.046-1155.9581388.88570.0170.0062-0.011-0.01870.00971: 8193435DH09DH10.1142-38.4258231.8816-383.3409449.66190.0193-0.00430.00160.0037-0.00191: 2326536T029TD11.1132-1543.2766-124.5594-886.33661784.04330.0286-0.01260.02610.0205

18、-0.00121: 6235837T029TD11.1133-1543.2766-124.5594-886.33661784.04330.02860.0309-0.0175-0.0045-0.02331: 62358表6.8 无约束平差结果序号点名纬度(D:M:S)经度(D:M:S)高程点位中误差中误差 (m)中误差 (m)中误差 (m)1DH0230:34:59.94355N114:22:55.99633E5.80360.0220.00830.00680.01922DH0430:33:53.20804N114:23:39.43951E5.58270.020.00570.00740.01783

19、DH0530:33:08.50116N114:23:55.37767E4.91320.00950.00320.00340.00834DH0630:32:20.85108N114:24:43.15869E9.42480.01530.0060.00520.01315DH0730:32:04.79783N114:25:13.54466E7.46210.01780.00630.00550.01586DH0830:31:15.38775N114:25:19.64012E13.61290.01360.00560.00570.01097DH0930:30:46.35097N114:25:08.18427E9

20、.08920.01670.00690.00760.01328DH1030:30:31.88353N114:25:05.90132E10.05570.01720.00690.00730.01399T02930:34:16.74997N114:23:11.07906E5.03420.02420.00720.01010.020810TD1130:33:43.31542N114:24:05.75250E5.43490.01670.00510.00550.015GPS控制网无约束平差网形图如下图5：图5经检验，本项目控制网中各基线的质量均通过同步环闭合差、异步环闭合差等检验。6.2.3 约束平差在WGS

21、-84坐标系下对基线向量网进行三维无约束平差，求解各控制点在WGS-84坐标系中的三维空间坐标：然后反算出DH02-DH10的边长，并投影到椭球面，根据投影后边长和方位角，通过DH02计算DH10的坐标，然后在坐标系（114）中，以DH02和DH10作为起算点，进行二维约束平差，求得各点在坐标系（114投影高程面0米）中的坐标。约束平差后精度状况良好，其结果见下表：表6.9 东湖通道四标段控制网平差结果序号点名xy中误差 (m)误差椭圆中误差 (m)中误差 (m)E(m)F(m)ET(D:M:S)1DH023384890.968536600.618*2DH043382839.836537765

22、.31640.01150.00880.0074137:11:540.00820.00813DH053381464.581538194.93160.00750.00590.00471:18:440.00590.00474DH063380001.784539473.77560.01090.00890.006412:00:220.00880.00655DH073379510.42540285.58630.01130.00910.0068179:24:230.00910.00686DH083377989.444540453.78040.00890.00730.005135:38:550.00660.0

23、0597DH093377094.117540151.68580.01070.00890.00637:18:500.0080.00728DH103376648.367540092.4706*9T0293383562.188537007.05240.0140.01110.0085126:41:120.00950.010210TD113382537.674538467.6140.01030.00790.0066171:15:120.00780.0067表6.10平面距离平差值起点终点dx中误差 (m)dy中误差 (m)平距方位角中误差 (m)相对误差DH02DH04-2051.1320.008211

24、64.69840.00812358.7418150.41070.01151: 205403DH05-3426.3860.00591594.31360.00473779.148155.04720.00751: 502419T029-1328.7790.0095406.43440.01021389.5478162.99270.0141: 99284TD11-2353.2940.00781866.9960.00673003.9415141.57310.01031: 291719DH04DH05-1375.2550.0066429.61520.00751440.7967162.65170.011: 1

25、43859T029722.35230.0084-758.26410.01061047.2618313.61060.01351: 77500TD11-302.16210.0067702.29760.0077764.5416113.27970.01021: 75016DH05DH06-1462.7970.00691278.8440.00491942.992138.83860.00841: 230017DH07-1954.1620.00722090.65470.00522861.7451133.06730.00891: 320131DH08-3475.1370.00652258.84870.00564144.7528146.9760.00861: 479879DH09-4370.4640.0081956.75420.00734788.5119155.88090.01081: 443058DH10-4816.2140.00591897.5390.00475176.5407158.49610.00751: 688205T0292097.60710.0083-1187.8790.01012410.6042330.4770.01311: 183828TD111073.09280.006272.68240.0055110